A client is receiving isoniazid after being diagnosed with tuberculosis. Which information should the nurse include in the client's teaching plan?

Choice A Reason
While hypertension can contribute to the development of PAD, it does not directly cause fats to deposit in the arteries. Hypertension can damage the arterial walls, making them more susceptible to atherosclerosis, but it is not the primary mechanism of PAD development.

Choice B Reason
Excess fats in the diet can contribute to atherosclerosis, which is the accumulation of plaques in the arterial walls. However, the fats do not simply get stored; they combine with other substances, including calcium and inflammatory cells, to form plaques that can restrict blood flow.

Choice C Reason
This statement is the most accurate. PAD is primarily caused by atherosclerosis, which is the buildup of plaques formed by fats, cholesterol, calcium, and other substances in the blood. These plaques can harden and narrow the arteries, leading to reduced blood flow to the extremities. The process can be exacerbated by factors such as smoking, diabetes, and high cholesterol.

Arterial spasms can occur, but they are not the typical cause of chronic PAD. Spasms are more often associated with conditions like Raynaud's phenomenon or can be a response to stress or cold temperatures. PAD is usually a result of progressive atherosclerosis rather than intermittent spasms.

Choice A reason:
Administering oxygen using a non-rebreather mask is a subsequent step if initial measures do not improve fetal heart rate decelerations. It can help increase the amount of oxygen available to the fetus. Oxygen administration is a supportive measure that can be used if there are signs of fetal distress. In the scenario described, where the fetal heart rate slows after the start of a contraction with the lowest rate occurring after the peak, it suggests late decelerations, which are often associated with uteroplacental insufficiency. Administering oxygen can help increase the fetal oxygen reserve and is a common intervention during labor when there are concerns about fetal well-being.

Choice B reason:
Increasing the rate of maintenance IV infusion is typically considered when there is a concern for maternal hypotension or dehydration, which may not be the immediate cause of the observed fetal heart rate pattern. Increasing the rate of an IV infusion can help improve maternal hydration and blood pressure, which in turn can enhance placental perfusion. However, this intervention is more indirect and may not provide the immediate response needed to address fetal heart rate decelerations. It is typically considered after more direct interventions, such as repositioning the mother, have been attempted.

Choice C reason:
Elevating the client's legs can help improve venous return to the heart, potentially increasing maternal cardiac output and blood flow to the placenta. While this can be beneficial, it is not the primary intervention for late decelerations. Repositioning the mother to improve uteroplacental circulation is generally the first step.
Choice D reason:
Placing the client in the lateral position is often the first action taken when late decelerations are observed. This position helps improve uteroplacental blood flow and can quickly address potential issues related to fetal oxygenation. This position helps to relieve pressure on the inferior vena cava and aorta, which can be compressed by the gravid uterus, especially in the supine position. Relieving this pressure helps to improve uteroplacental circulation and can quickly address the cause of late decelerations, which is often related to compromised blood flow to the placenta.